How to enable SSL for SmtpClient in Web.config

Question

Is there a way to set the EnableSSL from the web.config?

I could set this property in code, but that wouldn\'t work for the Simple Mail Web Event and other classes t

Answer 1

this works for me in .net 4

E.G. in web.config

network host="somesmtpserver" userName="do_not_reply@yourserver.com" 
password="whatever" port="25" enableSsl="true"         

Answer 2

Ah, there is a way to do it for the 'forgot password' built in .net login controls though.

See http://blogs.msdn.com/vikas/archive/2008/04/29/bug-asp-net-2-0-passwordrecovery-web-control-cannot-send-emails-to-ssl-enabled-smtp-servers.aspx

Ryan

Answer 3

Giles Roberts Jan 18 '12 at 18:01 said

this works for me in .net 4

E.G. in web.config

network host="somesmtpserver" userName="do_not_reply@yourserver.com" 
password="whatever" port="25" enableSsl="true" 

Port 25 is not a SSL port. Port 25 is the default SMTP port. Furthermore the web.config code is partly filled out. The code should be

    <system.net>
         <mailSettings>
              <smtp deliveryMethod="Network" from="user@gmail.com">
                     <network host="smtp.gmail.com"
                     userName="user@gmail.com"
                     password="********"
                     port="587"
                     defaultCredentials="true"
                     enableSsl="true" />
             </smtp>
        </mailSettings>
   </system.net>

This settings above is more accurate then the original web.config code. I don't know witch method is better. Using web.config or using the code-behind page to send the e-mail. No matter witch method you use the code-behind file has to be modified. I say this because you have to wire up From, Subject, and Body text boxes. I'm taking it for granted that the end results that you want to send a message through an aspx web page

Answer 4

I appears the class is sealed, so i made a manual extension. I thought i'd provide it for others here. Hope it can be of use to others.

/// <summary>
/// OldSchool extension of SmtpNetWorkElement, since it's sealed.
/// </summary>
public class SmtpNetworkElementEx
{
    private readonly SmtpNetworkElement m_SmtpNetWorkElement;

    /// <summary>
    /// Initializes a new instance of the <see cref="SmtpNetworkElementEx"/> class.
    /// </summary>
    public SmtpNetworkElementEx()
    {
        Configuration configurationFile = WebConfigurationManager.OpenWebConfiguration("~/web.config");
        var mailSettings = configurationFile.GetSectionGroup("system.net/mailSettings") as MailSettingsSectionGroup;

        if (mailSettings == null)
            return;

        m_SmtpNetWorkElement = mailSettings.Smtp.Network;
    }

    public string Host { get { return m_SmtpNetWorkElement.Host; } }
    public bool DefaultCredentials { get { return m_SmtpNetWorkElement.DefaultCredentials; } }
    public string ClientDomain { get { return m_SmtpNetWorkElement.ClientDomain; } }
    public string TargetName { get { return m_SmtpNetWorkElement.TargetName; } }
    public int Port { get { return m_SmtpNetWorkElement.Port; } }
    public string UserName { get { return m_SmtpNetWorkElement.UserName; } }
    public string Password { get { return m_SmtpNetWorkElement.Password; } }
    public bool EnableSsl { get { return Convert.ToBoolean(m_SmtpNetWorkElement.ElementInformation.Properties["enableSsl"].Value); } }
}

Use this way:

var smtpSettings = new SmtpNetworkElementEx();

_smtpClient.Host = smtpSettings.Host;
_smtpClient.Port = smtpSettings.Port;
_smtpClient.EnableSsl = smtpSettings.EnableSsl;
_smtpClient.Credentials = new System.Net.NetworkCredential(smtpSettings.UserName, smtpSettings.Password);

Answer 5

Just extend the class and set EnableSsl = true and use that class.

Answer 6

I have searched almost everywhere for this.

But it seems there is no way we can configure EnableSsl Property in web.config.

Have a look at this